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Characterization of value-added chemicals derived from the thermal hydrolysis and wet oxidation of sewage

Milan Malhotra, Anurag Garg

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1305-2

Abstract: Abstract • Hydrothermal treatment can greatly improve resource recovery from sewage sludge. • tCOD removalpretreatments, i.e., thermal hydrolysis (TH) and wet oxidation (WO) on sewage sludge to promote resource recoveryThe future study should focus on the development of economic recovery methods for various value-added

Keywords： Hydrothermal pretreatment     Reaction kinetics     Reaction pathway     Sewage sludge     Thermal hydrolysis     Wet oxidation    

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The Value Added Tax Anti-Fake and Control System and Its Security Design

Wei Qingfu

Strategic Study of CAE 2000, Volume 2, Issue 11,   Pages 84-87

Abstract:

The Value Added Tax (AVT) anti-fake and control system, which is one of the main parts of the National

Keywords： value-added tax     anti-fake     encryption     security    

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Clean Burning Process of Coal Which Converts Pollutants into Value-added Products

Zhu Xuefang

Strategic Study of CAE 1999, Volume 1, Issue 1,   Pages 53-57

Abstract:

The new technology of clean burning of coal and simultaneously converting the resultants into value-added

Keywords： clean burning     turning resultants into value-added products     quick burning and quick cooling     solid desulfurization    

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Electrochemical CO reduction to C products over CuZn intermetallic catalysts synthesized by electrodeposition

Frontiers in Energy doi: 10.1007/s11708-023-0898-0

Abstract: Electrocatalytic CO2 reduction (ECR) offers an attractive approach to realizing carbon neutrality and producing valuable chemicals and fuels using CO2 as the feedstock. However, the lack of cost-effective electrocatalysts with better performances has seriously hindered its application. Herein, a one-step co-electrodeposition method was used to introduce Zn, a metal with weak *CO binding energy, into Cu to form Cu/Zn intermetallic catalysts (Cu/Zn IMCs). It was shown that, using an H-cell, the high Faradaic efficiency of C2+ hydrocarbons/alcohols (FEC2+) could be achieved in ECR by adjusting the surface metal components and the applied potential. In suitable conditions, FEC2+ and current density could be as high as 75% and 40 mA/cm2, respectively. Compared with the Cu catalyst, the Cu/Zn IMCs have a lower interfacial charge transfer resistance and a larger electrochemically active surface area (ECSA), which accelerate the reaction. Moreover, the *CO formed on Zn sites can move to Cu sites due to its weak binding with *CO, and thus enhance the C–C coupling on the Cu surface to form C2+ products.

Keywords： carbon dioxide electroreduction     electrochemistry     co-electrodeposition     intermetallic catalysts     value-added    

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Comparing End-Use Potential for Industrial Food-Waste Sources Review

Raymond RedCorn, Samira Fatemi, Abigail S. Engelberth

Engineering 2018, Volume 4, Issue 3,   Pages 371-380 doi: 10.1016/j.eng.2018.05.010

Abstract: The levels of carbon, nutrients, and moisture in food waste make bioprocessing into higher value productsHigher value uses of industrial food waste could alleviate approximately 1.9 × 108 tThe potential value to be recovered is significant, and food-waste valorization will help to close the

Keywords： Industrial food waste     Food-waste valorization     Value-added recovery    

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On the added value of multi-scale modeling of concrete

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 1-23 doi: 10.1007/s11709-021-0790-0

Abstract: This review of the added value of multi-scale modeling of concrete is based on three representative examplesOverall, it is concluded that multi-scale models have indeed a significant added value.

Keywords： experiments     multi-scale analysis     conventional structural analysis     concrete     reinforced concrete    

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Modularized Production of Value-Added Products and Fuels from Distributed Waste Carbon-Rich Feedstocks Perspective

Robert S. Weber, Johnathan E. Holladay

Engineering 2018, Volume 4, Issue 3,   Pages 330-335 doi: 10.1016/j.eng.2018.05.012

Abstract: processes for the further conversions needed to transform the bio-oil from HTL into fuel or higher value

Keywords： Reducing generation and discharge of     pollutants     Chemical engineering    

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Sustainable Practice in Pavement Engineering through Value-Added Collective Recycling of Waste Plastic Article

Xiong Xu, Zhen Leng, Jingting Lan, Wei Wang, Jiangmiao Yu, Yawei Bai, Anand Sreeram, Jing Hu

Engineering 2021, Volume 7, Issue 6,   Pages 857-867 doi: 10.1016/j.eng.2020.08.020

Abstract: In addition, infrared spectroscopy, viscosity, dynamic shear rheology, and multiple stress creep recoverythe landfilling problems of both waste PET plastic and scrap tyres, but also turns these wastes into value-added

Keywords： Waste polyethylene terephthalate     Waste tyre rubber     Rubberized bitumen     Recycling mechanism     Sustainability    

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Recycling polymeric waste from electronic and automotive sectors into value added products

Abhishek Kumar, Veena Choudhary, Rita Khanna, Romina Cayumil, Muhammad Ikram-ul-Haq, Veena Sahajwalla, Shiva Kumar I. Angadi, Ganapathy E. Paruthy, Partha S. Mukherjee, Miles Park

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0991-x

Abstract: The environmentally sustainable disposal and recycling of ever increasing volumes of electronic waste has become global waste management issue. The addition of up to 25% polymeric waste PCBs (printed circuit boards) as fillers in polypropylene (PP) composites was partially successful: while the tensile modulus, flexural strength and flexural modulus of composites were enhanced, the tensile and impact strengths were found to decrease. As a lowering of impact strength can significantly limit the application of PP based composites, it is necessary to incorporate impact modifying polymers such as rubbery particles in the mix. We report on a novel investigation on the simultaneous utilization of electronic and automotive rubber waste as fillers in PP composites. These composites were prepared by using 25 wt.% polymeric PCB powder, up to 9% of ethylene propylene rubber (EPR), and PP: balance. The influence of EPR on the structural, thermal, mechanical and rheological properties of PP/PCB/EPR composites was investigated. While the addition of EPR caused the nucleation of the β crystalline phase of PP, the onset temperature for thermal degradation was found to decrease by 8%. The tensile modulus and strength decreased by 16% and 19%, respectively; and the elongation at break increased by ~71%. The impact strength showed a maximum increase of ~18% at 7 wt.%–9 wt.% EPR content. Various rheological properties were found to be well within the range of processing limits. This novel eco-friendly approach could help utilize significant amounts of polymeric electronic and automotive waste for fabricating valuable polymer composites.

Keywords： E-waste     Polymer composites     Recycling     Rubber     Waste PCBs     Filler    

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The main and added effects of heat on mortality in 33 Chinese cities from 2007 to 2013

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1681-5

Abstract:

● The main and added effect from heat co-existed in China.

Keywords： Heat     Main effect     Added effect     Mortality     Vulnerable population    

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Innovative seismic retrofitting strategy of added stories isolation system

Min-Ho CHEY, J. Geoffrey CHASE, John B. MANDER, Athol J. CARR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 13-23 doi: 10.1007/s11709-013-0195-9

Abstract: The seismic performance of “added stories isolation” (ASI) systems are investigated for 12-story momentThe newly added and isolated upper stories on the top of the existing structure are rolled to act asSpecific results include the identification of differences in the number of added story by which the

Keywords： added stories     seismic isolation     tuned mass damper     parametric optimization     statistical method    

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Field evidence of decreased extractability of copper and nickel added to soils in 6-year field experiments

Bao Jiang, Dechun Su, Xiaoqing Wang, Jifang Liu, Yibing Ma

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0990-y

Abstract: The phytotoxicity of added copper (Cu) and nickel (Ni) is influenced by soil properties and field agingTherefore, this study was conducted to investigate the extractability of added Cu and Ni in 6-year fieldThe results showed that the extractability of added Cu decreased by 6.63% (5.10%–7.90%), 22.5% (20.6%on average for acidic, neutral, and alkaline soil from 1 to 6 years, although the phytotoxicity of addedThe sum of ten sequential extractions of Cu and Ni showed that added Cu was more extractable than Ni

Keywords： Copper     Nickel     EDTA     Sequential extraction    

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Improved resilience measure for component recovery priority in power grids

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 545-556 doi: 10.1007/s42524-021-0161-5

Abstract: Consequently, the quick recovery of power grids after disasters has become a new research direction.The recovery priority of failed components after a disaster is determined according to the influenceResult shows that the recovery priorities of components with different importance measures vary.

Keywords： resilience measure     power grid     importance measure     component recovery    

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Technologies for pollutant removal and resource recovery from blackwater: a review

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1683-3

Abstract:

● Blackwater is the main source of organics and nutrients in domestic wastewater.

Keywords： Blackwater     Water-flushing toilet     Sanitation     Nutrient recovery     Water reuse     Sustainable development    

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Value Engineering/Value Management Model and Application of Aerospace Projects

Wan-hua Qiu,Han-peng Zhang,Ze-Shui Xu,De-Sheng Wu

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 373-377 doi: 10.15302/J-FEM-2015056

Abstract: This paper presents a new space model developed by general value engineering/value management model.realization of the development object as the basic point, to get the final optimization structure by value

Keywords： aerospace project     value engineering     value optimization     value stream     design structure matrix    

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Title Author Date Type Operation

Characterization of value-added chemicals derived from the thermal hydrolysis and wet oxidation of sewage

Milan Malhotra, Anurag Garg

Journal Article

The Value Added Tax Anti-Fake and Control System and Its Security Design

Wei Qingfu

Journal Article

Clean Burning Process of Coal Which Converts Pollutants into Value-added Products

Zhu Xuefang

Journal Article

Electrochemical CO reduction to C products over CuZn intermetallic catalysts synthesized by electrodeposition

Journal Article

Comparing End-Use Potential for Industrial Food-Waste Sources

Raymond RedCorn, Samira Fatemi, Abigail S. Engelberth

Journal Article

On the added value of multi-scale modeling of concrete

Journal Article

Modularized Production of Value-Added Products and Fuels from Distributed Waste Carbon-Rich Feedstocks

Robert S. Weber, Johnathan E. Holladay

Journal Article

Sustainable Practice in Pavement Engineering through Value-Added Collective Recycling of Waste Plastic

Xiong Xu, Zhen Leng, Jingting Lan, Wei Wang, Jiangmiao Yu, Yawei Bai, Anand Sreeram, Jing Hu

Journal Article

Recycling polymeric waste from electronic and automotive sectors into value added products

Abhishek Kumar, Veena Choudhary, Rita Khanna, Romina Cayumil, Muhammad Ikram-ul-Haq, Veena Sahajwalla, Shiva Kumar I. Angadi, Ganapathy E. Paruthy, Partha S. Mukherjee, Miles Park

Journal Article

The main and added effects of heat on mortality in 33 Chinese cities from 2007 to 2013

Journal Article

Innovative seismic retrofitting strategy of added stories isolation system

Min-Ho CHEY, J. Geoffrey CHASE, John B. MANDER, Athol J. CARR

Journal Article

Field evidence of decreased extractability of copper and nickel added to soils in 6-year field experiments

Bao Jiang, Dechun Su, Xiaoqing Wang, Jifang Liu, Yibing Ma

Journal Article

Improved resilience measure for component recovery priority in power grids

Journal Article

Technologies for pollutant removal and resource recovery from blackwater: a review

Journal Article

Value Engineering/Value Management Model and Application of Aerospace Projects

Wan-hua Qiu,Han-peng Zhang,Ze-Shui Xu,De-Sheng Wu

Journal Article